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#!/bin/bash
# wh-loopc.sh: Count to 10 in a "while" loop.
LIMIT=10 # 10 iterations.
a=1
while [ "$a" -le $LIMIT ]
do
echo -n "$a "
let "a+=1"
done # No surprises, so far.
echo; echo
# +=================================================================+
# Now, we'll repeat with C-like syntax.
((a = 1)) # a=1
# Double parentheses permit space when setting a variable, as in C.
while (( a <= LIMIT )) # Double parentheses,
do #+ and no "$" preceding variables.
echo -n "$a "
((a += 1)) # let "a+=1"
# Yes, indeed.
# Double parentheses permit incrementing a variable with C-like syntax.
done
echo
# C and Java programmers can feel right at home in Bash.
exit 0
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